fix issue 929: Large Stage Movement

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 52.98%. Comparing base (7fbace9) to head (fd27e4c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #941 +/- ## =========================================== - Coverage 52.98% 52.98% -0.01% =========================================== Files 177 177 Lines 19106 19108 +2 =========================================== + Hits 10123 10124 +1 - Misses 8983 8984 +1 ``` | [Flag](https://app.codecov.io/gh/TheDeanLab/navigate/pull/941/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheDeanLab) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/TheDeanLab/navigate/pull/941/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheDeanLab) | `52.98% <100.00%> (-0.01%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheDeanLab#carryforward-flags-in-the-pull-request-comment) to find out more.

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